Vapor-lamp burner



W. F. KIS'TLBR.: Vapor Lamp Burner.

Patented Dec. 14,1880.

N. FErEns. FHDTULLITHDGRAPMER. WASHINGTON D- C- Uwrran STATES PATENT OFFICE.

VILLOUGHBAY F. KIS'ILER, OF CHICAGO, ILLINOIS, ASSIGNOR. IO ELEAZAR J. BEARD, OF ST. LOUIS, MISSOURI.

VAPOR-LAMP BURNER.

1 SPECIFICATION forming part of Letters Patent No. 235,439, dated December 14, 1880. Application fusa February 19, issu.

To all whom it 'may concern:

Be .it known that I, WiLLoUeHBAY F. Kisr- LER, of the city of Chicago, in theconnty of Cook, in the State of Illinois, have invented a new and useful Improvement in Vapor-Lamp Burners; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings.

My invention relates to lamps for the use of `kerosene and other tluids capable of giving an inflammable vapor, and the object of it is to y provide a convenient, safe, and economical means of burningsuch vapor for the production of light, and a method of making use of wicksi'o'r that purpose without appreciable consumption or deterioration of the wicks.

In the drawings, Figure l represents a side sheath K being' partly. cut away to show the top of the air-tube I. Fig. 2 represents a horizoutal section of the same on a plane intersecting Fig. l inthe dotted line a: x. Fig. 3 represents a vertical central section of the burner, and Fig. 4 represents a perspective View of the extinguisher.

, The same letters indicate the same parts of the burnerin all the igures.

-The burner is of brass or other suitable material.

The large wick-tube Ais iilled with a wick,

. B, of suitable thickness, to within a short distance of the top. Into the extreme upper part of this tube is pressed a line wire, C, coiled about itself closely into a bunch large enough to till the tube down to the wick and spread a little higher and wider than the upper edge of the tube. Each of the small wick -tubes a and e is also filled with a wick, b, of suitable thickness. The lower end of each of these three wicks extends below the tubes and into the fluid in the lamp-globe, which may be of any suitable form andmaterial. Each of the tubes opens into the cavity of the lampglobe, and is soldered or otherwise suitably fastened toithe border of the corresponding hole in the ca p of the lamp-globe.

. On the top of the large wick-tubeA is litted 5o a detachable crown, D, consisting of a tube,

View of the improved burner, the side of the\ e, just large enough to lit close over the wicktube and opening above into a head, j'. This head is closed, except where the tube opens into it, and except several line perforations, g. The upper and lower bases of the head extend in the shape of flanges h and li.

A small air-tube, I, outside of the large wick-tube A, and near to one of the smaller tubes a', passes at its lower end through the cap N ofthe lamp-globe. A small projection, 6o j, extends from the top ot' this air-tube horizontally toward the tube a.

An outer tube or cylindrical sheath, K, open at both ends, surrounds the wick-tubes, but does not extend the whole length ofthe same. To its inner surface are attached, by rivets or other suitable fastenings, two tubes or slides,

L and L', just large enough and in the right position to slide closely but smoothly in a vertical direction over the smaller wick-tubes a 7o and a.

The tops of these slides are set on a level with each other, somewhat below the upper edge of the sheath, so that the wick-tubes may be considerably overtopped by the sheath with- 7 5 out being at all overtopped by the slides.

V The shorter slide L, which is on the tube a, does not extend below the lower edge of the sheath. The other, L', extends so far below as to rest on the cap of the lamp-globe when 8o the top of the sheath is level with the tops of the smaller wick-tubes. The sheath will then obviously be in its lowest position. The limit of its upward motion is determined by a pin or projection, m, which extends from the slide L 8 5 in a direction crossing that of the projection j ot' the air-tube at right angles. It is placed at such a height on L that when the bottom of L' rests on the cap N of the lamp-globe, m will be considerably farther below j than the 9o distance of the tops of the slidesbelow the upper edge of the sheath K, but not so far as the distance between the upper edge of -K and the lower base. of the head j'. The projections j and m will thus interlock and prevent any further upward motion of K, while its top is still some distance below the lower base off, though not until the slides have risen far enough above the tops of the smaller wicktubes to extinguish their flame.

There is thus 1o@ in every' position a free circulation of air below the projecting part of the head aud around the upper part ofthe wick-tubes.

The extinguisher O is a cylinder of sheet metal closed at one end, and of such diameter and altitude as to set closely on the cap N of the lamp-globe, and in that position cover the entire burner.

I do not limit myself to the proportions indicated in the foregoing description. lt is evident that they may be varied without at'- fecting the principle of the invention.

To put the burner into use, the head I) being set upon the large wick-tube A, the sheath K is made to slide to its lower position and the small wicks are lighted. Their flame heats the head-an operation which is aided by pushing the sheath up until its top and bottom are respectively on the dotted lilies y y and z z', Figs. 1 and 2, respectively, and the tops ot' the slides are exactly level with the tops of the small wick-tubes a and a'. The Haines 0f the small wicks thus receive an exclusively upward direction toward the head, being restrained by the sheath from passing laterally outward.

The kerosene or other burning-fluid rising in the main wick B vaporizes, and, escaping through the perforations in the head D, burns With a brilliant flame, which cannot be conimunicated t0 the wick B because of thel interposition of the reticulated wire (I. It is also t0 this wire (inconibustible and at the saine time capable of developing a high degree of heat) that the lnore perfect vaporization ofthe Huid, so as to burn with a clear light, is due.

When the vapor is once lighted the heat produced by its tlame is suiicient to maintain a continuous vaporization and combustion. The sheath K may then be pushed up to its farthest limit, so that its top will be about on a level with the lower rim of the crown-tube e, and the tops of the slides will bc raised considerably above the tops of the small wicks, so as to extinguish their iiame. A better rel sult, however, will generally be produced by pushing the sheath only so far up as to bring the tops of the slides slightly above the tops of the wick-tubes, leaving a portion of each wick above the top of the slide, so as to maintain a small ilame in each wick.

Air entering the lamp-globe through the air-tube I maintains a pressure on the surface of the tluid within such as to aid materially the capillary motion of the fluid in the wick.

The tiame is extinguished by putting on the extinguisher, thus shutting out the air from the burning vapor.

In the operation thus described there is practically no combustion or charring ot' the large wick and very little of the smaller wicks, so little that the burner can be steadily used for man v weeks without trimming them.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, in a vap0rlamp burner, of the main wick-tube, one or more small auxiliary wick-tubes to provide a llame for heating the main wick-tube to vaporzc the iluid, and a sliding sheath, K, provided with tubes adapted to slide over the auxiliary wick-tubes for regulating the auxiliary' flame.

2. ln a lamp-burner, the air-tube I, provided with a stop, in combination with the sliding sheath K and slide L', having a projection, m, and with the auxiliary wick-tube a', substautially as and l'or the purpose specitied.

3. In a lamp-burner, the conlbination ot' the main wick tube A. its head D, the coiled bunch of tine wire C, the smaller wicks a and a', the air-tube I, its horizontal projection or pinj, with the cylindrical sheath K, with its slides L and L', and the horizontal projection or pin m, all substantially as and for the purpose described.

WILLOUGHBAY F. KISTLER.

Witnesses:

L. L. CoBURN, JN0. U. MACGREGOR. 

